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feat(graphs): complete pie chart

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This commit is contained in:
Matyáš Caras 2024-01-08 15:23:42 +01:00
parent 4b035e0724
commit d5e94d63d7
Signed by untrusted user who does not match committer: hernik
GPG key ID: 2A3175F98820C5C6
8 changed files with 318 additions and 104 deletions
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1
CHANGELOG.md
View file

@ -3,6 +3,7 @@
- Change code according to more aggressive linting
- Create a default "no category" category, mainly to store entries with removed categories
- Categories now have changeable colors assigned to them
- Added pie chart for expense/income data per category
# 1.0.0-alpha+2
- Fixed localization issues
- Added graphs for expenses and income per month/year

3
lib/l10n/app_cs.arb
View file

@ -80,5 +80,6 @@
"wallet":"Peněženka",
"noCategory":"Žádná kategorie",
"done":"Hotovo",
"pickColor":"Zvolte barvu"
"pickColor":"Zvolte barvu",
"changeDate":"Změnit ze kterého měsíce/roku brát data"
}

3
lib/l10n/app_en.arb
View file

@ -160,5 +160,6 @@
"wallet":"Wallet",
"noCategory":"No category",
"done":"Done",
"pickColor":"Pick a color"
"pickColor":"Pick a color",
"changeDate":"Change what month/year to pick data from"
}

3
lib/pw/platformwidget.dart
View file

@ -5,7 +5,8 @@ import 'package:flutter/material.dart';
/// Abstract class used to create widgets for the respective platform UI library
abstract class PlatformWidget<A extends Widget, I extends Widget>
extends StatelessWidget {
/// Abstract class used to create widgets for the respective platform UI library
/// Abstract class used to create widgets
/// for the respective platform UI library
const PlatformWidget({super.key});
@override

8
lib/util/get_last_date.dart Normal file
View file

@ -0,0 +1,8 @@
/// Extension to get last day of the month
extension LastDay on DateTime {
/// Returns the last day of the month as [int]
int get lastDay {
final d = add(const Duration(days: 31));
return DateTime(d.year, d.month, 0).day;
}
}

236
lib/util/graphs.dart
View file

@ -3,9 +3,12 @@ import 'package:dynamic_color/dynamic_color.dart';
import 'package:fl_chart/fl_chart.dart';
import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
import 'package:intl/intl.dart';
import 'package:prasule/api/category.dart';
import 'package:prasule/api/walletentry.dart';
import 'package:intl/intl.dart';
import 'package:prasule/main.dart';
import 'package:prasule/util/get_last_date.dart';
import 'package:prasule/util/text_color.dart';
/// Monthly/Yearly expense/income [LineChart]
class ExpensesLineChart extends StatelessWidget {
@ -72,7 +75,9 @@ class ExpensesLineChart extends StatelessWidget {
getTooltipItems: (spots) => List<LineTooltipItem>.generate(
spots.length,
(index) => LineTooltipItem(
(spots[index].barIndex == 0)
// Changes what's rendered on the tooltip
// when clicked in the chart
(spots[index].barIndex == 0) // income chart
? (yearly
? AppLocalizations.of(context).incomeForMonth(
DateFormat.MMMM(locale).format(
@ -94,7 +99,7 @@ class ExpensesLineChart extends StatelessWidget {
name: currency.name,
).format(spots[index].y),
))
: (yearly
: (yearly // expense chart
? AppLocalizations.of(context).expensesForMonth(
DateFormat.MMMM(locale).format(
DateTime(
@ -116,12 +121,25 @@ class ExpensesLineChart extends StatelessWidget {
).format(spots[index].y),
)),
TextStyle(color: spots[index].bar.color),
children: [
TextSpan(
text: "\n${yearly ? DateFormat.MMMM(locale).format(
DateTime(
date.year,
index + 1,
),
) : DateFormat.yMMMMd(locale).format(DateTime(date.year, date.month, spots[index].spotIndex + 1))}",
),
],
),
),
),
),
maxY: maxY,
maxX: yearly ? 12 : DateTime(date.year, date.month, 0).day.toDouble(),
maxX: yearly
? 12
: date.lastDay.toDouble() -
1, // remove 1 because we are indexing from 0
minY: 0,
minX: 0,
backgroundColor: Theme.of(context).colorScheme.background,
@ -133,10 +151,13 @@ class ExpensesLineChart extends StatelessWidget {
isStrokeCapRound: true,
dotData: const FlDotData(show: false),
belowBarData: BarAreaData(),
color: Colors.green
.harmonizeWith(Theme.of(context).colorScheme.secondary),
color:
(MediaQuery.of(context).platformBrightness == Brightness.dark)
? Colors.green.shade300
: Colors.green
.harmonizeWith(Theme.of(context).colorScheme.primary),
spots: List.generate(
yearly ? 12 : DateTime(date.year, date.month, 0).day,
yearly ? 12 : date.lastDay,
(index) => FlSpot(index.toDouble(), incomeData[index]),
),
),
@ -147,17 +168,37 @@ class ExpensesLineChart extends StatelessWidget {
isStrokeCapRound: true,
dotData: const FlDotData(show: false),
belowBarData: BarAreaData(),
color: Colors.red
.harmonizeWith(Theme.of(context).colorScheme.secondary),
color:
(MediaQuery.of(context).platformBrightness == Brightness.dark)
? Colors.red.shade300
: Colors.red
.harmonizeWith(Theme.of(context).colorScheme.primary),
spots: List.generate(
yearly ? 12 : DateTime(date.year, date.month, 0).day,
(index) => FlSpot(index.toDouble() + 1, expenseData[index]),
yearly
? 12
: date.lastDay, // no -1 because it's the length, not index
(index) => FlSpot(index.toDouble(), expenseData[index]),
),
),
], // actual data
titlesData: FlTitlesData(
rightTitles: const AxisTitles(),
topTitles: const AxisTitles(),
leftTitles: AxisTitles(
sideTitles: SideTitles(
reservedSize: (NumberFormat.compact()
.format(expenseDataSorted.last)
.length >=
5 ||
NumberFormat.compact()
.format(incomeDataSorted.last)
.length >=
5)
? 50
: 25,
showTitles: true,
),
),
bottomTitles: AxisTitles(
sideTitles: SideTitles(
reservedSize: 30,
@ -319,7 +360,7 @@ class ExpensesBarChart extends StatelessWidget {
minY: 0,
maxY: maxY,
barGroups: List<BarChartGroupData>.generate(
yearly ? 12 : DateTime(date.year, date.month, 0).day,
yearly ? 12 : date.lastDay - 1,
(index) => BarChartGroupData(
x: index,
barRods: [
@ -327,13 +368,13 @@ class ExpensesBarChart extends StatelessWidget {
BarChartRodData(
toY: incomeData[index],
color: Colors.green
.harmonizeWith(Theme.of(context).colorScheme.secondary),
.harmonizeWith(Theme.of(context).colorScheme.primary),
),
if (expenseData.isNotEmpty)
BarChartRodData(
toY: expenseData[index],
color: Colors.red
.harmonizeWith(Theme.of(context).colorScheme.secondary),
.harmonizeWith(Theme.of(context).colorScheme.primary),
),
],
),
@ -342,29 +383,164 @@ class ExpensesBarChart extends StatelessWidget {
);
}
class CategoriesPieChart extends StatelessWidget {
const CategoriesPieChart(
{super.key, required this.entries, required this.categories});
/// [PieChart] used to display expenses/income visualized
/// under their respective category
class CategoriesPieChart extends StatefulWidget {
/// [PieChart] used to display expenses/income visualized
/// under their respective category
const CategoriesPieChart({
required this.entries,
required this.categories,
required this.symbol,
super.key,
});
/// Entries to be used
final List<WalletSingleEntry> entries;
/// Categories to be displayed
final List<WalletCategory> categories;
/// Currency symbol displayed on the chart
final String symbol;
@override
Widget build(BuildContext context) => PieChart(
PieChartData(
sections: List<PieChartSectionData>.generate(
categories.length,
(index) => PieChartSectionData(
value: entries
.where(
(element) => element.category.id == categories[index].id)
.fold<double>(
0,
(previousValue, element) =>
previousValue + element.data.amount,
State<CategoriesPieChart> createState() => _CategoriesPieChartState();
}
class _CategoriesPieChartState extends State<CategoriesPieChart> {
int touchedIndex = -1;
@override
Widget build(BuildContext context) => Column(
children: [
SizedBox(
width: MediaQuery.of(context).size.width,
child: Wrap(
alignment: WrapAlignment.center,
spacing: 4,
children: List<Widget>.generate(
widget.categories.length,
(index) => Padding(
padding: const EdgeInsets.all(8),
child: Indicator(
size: touchedIndex == index ? 18 : 16,
color: widget.categories[index].color,
text: widget.categories[index].name,
textStyle: TextStyle(
fontWeight: (touchedIndex == index)
? FontWeight.bold
: FontWeight.normal,
),
),
),
),
),
),
),
const SizedBox(
height: 5,
),
Expanded(
child: PieChart(
PieChartData(
centerSpaceRadius: double.infinity,
pieTouchData: PieTouchData(
touchCallback: (event, response) {
// Set touchedIndex so we can highlight
// the corresponding indicator
setState(() {
if (!event.isInterestedForInteractions ||
response == null ||
response.touchedSection == null) {
touchedIndex = -1;
return;
}
touchedIndex =
response.touchedSection!.touchedSectionIndex;
});
},
),
sections: List<PieChartSectionData>.generate(
widget.categories.length,
(index) => PieChartSectionData(
title: NumberFormat.compactCurrency(symbol: widget.symbol)
.format(
widget.entries
.where(
(element) =>
element.category.id ==
widget.categories[index].id,
)
.fold<double>(
0,
(previousValue, element) =>
previousValue + element.data.amount,
),
),
titleStyle: TextStyle(
color:
widget.categories[index].color.calculateTextColor(),
fontWeight: FontWeight.bold,
),
color: widget.categories[index].color,
value: widget.entries
.where(
(element) =>
element.category.id ==
widget.categories[index].id,
)
.fold<double>(
0,
(previousValue, element) =>
previousValue + element.data.amount,
),
),
),
),
),
),
],
);
}
/// Used to indicate which part of a chart is for what
class Indicator extends StatelessWidget {
/// Used to indicate which part of a chart is for what
const Indicator({
required this.size,
required this.color,
required this.text,
this.textStyle = const TextStyle(),
super.key,
});
/// Size of the indicator circle
final double size;
/// Color of the indicator circle
final Color color;
/// Text shown next to the indicator circle
final String text;
final TextStyle textStyle;
@override
Widget build(BuildContext context) => Row(
mainAxisSize: MainAxisSize.min,
children: [
Container(
width: size,
height: size,
decoration: BoxDecoration(
shape: BoxShape.circle,
color: color,
),
),
const SizedBox(
width: 4,
),
Text(text, style: textStyle),
],
);
}

166
lib/views/graph_view.dart
View file

@ -40,8 +40,9 @@ class _GraphViewState extends State<GraphView> {
}
List<double> generateChartData(EntryType type) {
final d = _selectedDate.add(const Duration(days: 31));
final data = List<double>.filled(
yearly ? 12 : DateTime(_selectedDate.year, _selectedDate.month, 0).day,
yearly ? 12 : DateTime(d.year, d.month, 0).day,
0,
);
if (selectedWallet == null) return [];
@ -92,6 +93,47 @@ class _GraphViewState extends State<GraphView> {
@override
Widget build(BuildContext context) {
return Scaffold(
floatingActionButton: Tooltip(
message: AppLocalizations.of(context).changeDate,
child: PlatformButton(
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(
Theme.of(context).colorScheme.primary,
),
foregroundColor: MaterialStateProperty.all(
Theme.of(context).colorScheme.onPrimary,
),
),
text: yearly
? DateFormat.y(locale).format(_selectedDate)
: DateFormat.yMMMM(locale).format(_selectedDate),
onPressed: () async {
final firstDate = (selectedWallet!.entries
..sort(
(a, b) => a.date.compareTo(b.date),
))
.first
.date;
final newDate = await showDatePicker(
context: context,
initialDate: DateTime(
_selectedDate.year,
_selectedDate.month,
),
firstDate: firstDate,
lastDate: DateTime.now(),
initialEntryMode: yearly
? DatePickerEntryMode.input
: DatePickerEntryMode.calendar,
initialDatePickerMode:
yearly ? DatePickerMode.year : DatePickerMode.day,
);
if (newDate == null) return;
_selectedDate = newDate;
setState(() {});
},
),
),
appBar: AppBar(
title: DropdownButton<int>(
value:
@ -137,11 +179,19 @@ class _GraphViewState extends State<GraphView> {
].map((e) => PopupMenuItem(value: e, child: Text(e))).toList(),
onSelected: (value) {
if (value == AppLocalizations.of(context).settings) {
Navigator.of(context).push(
Navigator.of(context)
.push(
platformRoute(
(context) => const SettingsView(),
),
);
)
.then((value) async {
selectedWallet =
await WalletManager.loadWallet(selectedWallet!.name);
final s = await SharedPreferences.getInstance();
chartType = s.getInt("monthlygraph") ?? 2;
setState(() {});
});
} else if (value == AppLocalizations.of(context).about) {
showAboutDialog(
context: context,
@ -219,58 +269,10 @@ class _GraphViewState extends State<GraphView> {
padding: const EdgeInsets.all(8),
child: Column(
children: [
PlatformButton(
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(
Theme.of(context).colorScheme.primary,
),
foregroundColor: MaterialStateProperty.all(
Theme.of(context).colorScheme.onPrimary,
),
),
text: yearly
? DateFormat.y(locale).format(_selectedDate)
: DateFormat.yMMMM(locale)
.format(_selectedDate),
onPressed: () async {
final firstDate = (selectedWallet!.entries
..sort(
(a, b) => a.date.compareTo(b.date),
))
.first
.date;
final lastDate = (selectedWallet!.entries
..sort(
(a, b) => b.date.compareTo(a.date),
))
.first
.date;
final newDate = await showDatePicker(
context: context,
initialDate: DateTime(
_selectedDate.year,
_selectedDate.month,
),
firstDate: firstDate,
lastDate: lastDate,
initialEntryMode: yearly
? DatePickerEntryMode.input
: DatePickerEntryMode.calendar,
initialDatePickerMode: yearly
? DatePickerMode.year
: DatePickerMode.day,
);
if (newDate == null) return;
_selectedDate = newDate;
setState(() {});
},
),
const SizedBox(
height: 5,
),
SizedBox(
width: MediaQuery.of(context).size.width * 0.9,
height: 300,
height:
MediaQuery.of(context).size.height * 0.35,
child: (chartType == null)
? const CircularProgressIndicator()
: (chartType == 1)
@ -292,29 +294,53 @@ class _GraphViewState extends State<GraphView> {
)
: [],
)
: ExpensesLineChart(
currency: selectedWallet!.currency,
date: _selectedDate,
locale: locale ?? "en",
yearly: yearly,
expenseData: (graphTypeSet
.contains("expense"))
? generateChartData(
EntryType.expense,
)
: [],
incomeData: (graphTypeSet
.contains("income"))
? generateChartData(
EntryType.income,
)
: [],
: Padding(
padding: const EdgeInsets.all(8),
child: ExpensesLineChart(
currency:
selectedWallet!.currency,
date: _selectedDate,
locale: locale ?? "en",
yearly: yearly,
expenseData: (graphTypeSet
.contains("expense"))
? generateChartData(
EntryType.expense,
)
: [],
incomeData: (graphTypeSet
.contains("income"))
? generateChartData(
EntryType.income,
)
: [],
),
),
),
],
),
),
),
const SizedBox(
height: 25,
),
Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(8),
color:
Theme.of(context).colorScheme.secondaryContainer,
),
width: MediaQuery.of(context).size.width * 0.95,
height: MediaQuery.of(context).size.height * 0.35,
child: Padding(
padding: const EdgeInsets.all(8),
child: CategoriesPieChart(
symbol: selectedWallet!.currency.symbol,
entries: selectedWallet!.entries,
categories: selectedWallet!.categories,
),
),
),
],
),
),

2
lib/views/setup.dart
View file

@ -62,7 +62,7 @@ class _SetupViewState extends State<SetupView> {
Icons.payments.codePoint,
fontFamily: 'MaterialIcons',
),
color: Colors.transparent,
color: Theme.of(context).colorScheme.secondary,
),
WalletCategory(
name: AppLocalizations.of(context).categoryHealth,